I bought these to add a little extra light to my living room; to call the natural lighting "cave-like" would be generous. These work well for that. There's a little button to change the blink pattern. However, it doesn't remember your selection - it chooses a random one each time you plug it in. I have mine in a smart plug, and every time I turn it on I need to go change the setting. Not a deal breaker by any means, but kind of annoying.